Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership124,020 shares
Latest Disclosed Value $ 9,344,876
Advisor Group Holdings, Inc. reports 5.73% decrease in ownership of OMC / Omnicom Group Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 124,020 shares of Omnicom Group Inc. (US:OMC) valued at $9,339,946 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 131,553 shares of Omnicom Group Inc.. This represents a change in shares of -5.73% during the quarter. The current value of the position is $9,339,946 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F OMNICOM GROUP COM 681919106 124,020 -7,533 -5.73 9,345 -12.07 0.0080
2026-02-17 2025-12-31 13F OMNICOM GROUP COM 681919106 131,553 -78,164 -37.27 10,627 -37.61 0.0155
2025-11-14 2025-09-30 13F OMNICOM GROUP COM 681919106 209,717 107,533 105.23 17,034 109.80 0.0238
2025-09-04 2025-06-30 13F/A-1 MNICOM GROUP COM 681919106 102,184 75,957 289.61 8,120 272.77 0.0145
2025-08-13 2025-06-30 13F MNICOM GROUP COM 681919106 97,662 71,435 8,080 0.0093
2025-05-12 2025-03-31 13F OMNICOM GROUP COM 681919106 26,227 -47,047 -64.21 2,178 -60.03 0.0049
2025-06-06 2024-12-31 13F/A-1 OMNICOM GROUP COM 681919106 73,274 5,951 8.84 5,450 -21.75 0.0122
2025-02-07 2024-12-31 13F OMNICOM GROUP COM 681919106 71,888 4,565 5,658 0.0144
2024-11-13 2024-09-30 13F OMNICOM GROUP COM 681919106 67,323 -12,311 -15.46 6,964 -2.55 0.0157
2024-08-13 2024-06-30 13F OMNICOM GROUP COM 681919106 79,634 26,731 50.53 7,147 39.52 0.0169
2024-05-10 2024-03-31 13F OMNICOM GROUP COM 681919106 52,903 -127,837 -70.73 5,123 -67.27 0.0114
2024-02-12 2023-12-31 13F OMNICOM GROUP COM 681919106 180,740 -93,844 -34.18 15,647 -23.52 0.0274
2023-11-13 2023-09-30 13F OMNICOM GROUP COM 681919106 274,584 128,077 87.42 20,460 46.73 0.0302
2023-08-21 2023-06-30 13F/A-1 OMNICOM GROUP COM 681919106 146,507 -31,811 -17.84 13,945 -17.13 0.0250
2023-08-10 2023-06-30 13F OMNICOM GROUP COM 681919106 243,011 64,693 13,848 0.0038
2023-05-12 2023-03-31 13F OMNICOM GROUP COM 681919106 178,318 12,107 7.28 16,827 24.04 0.0317
2023-02-10 2022-12-31 13F OMNICOM GROUP COM 681919106 166,211 1,361 0.83 13,565 30.36 0.0275
2022-11-14 2022-09-30 13F OMNICOM GROUP COM 681919106 164,850 14,061 9.32 10,406 8.42 0.0238
2022-08-10 2022-06-30 13F OMNICOM GROUP COM 681919106 150,789 32,287 27.25 9,598 -12.55 0.0212
2022-05-04 2022-03-31 13F OMNICOM GROUP COM 681919106 118,502 1,444 1.23 10,976 27.85 0.0213
2022-02-03 2021-12-31 13F OMNICOM GROUP COM 681919106 117,058 20,688 21.47 8,585 22.77 0.0162
2021-11-05 2021-09-30 13F OMNICOM GROUP COM 681919106 96,370 19,665 25.64 6,993 13.82 0.0146
2021-08-02 2021-06-30 13F OMNICOM GROUP COM 681919106 76,705 -399 -0.52 6,144 7.08 0.0133
2021-05-13 2021-03-31 13F OMNICOM GROUP COM 681919106 77,104 10,705 16.12 5,738 38.47 0.0138
2021-02-10 2020-12-31 13F OMNICOM GROUP COM 681919106 66,399 8,838 15.35 4,144 45.45 0.0111
2020-11-12 2020-09-30 13F OMNICOM GROUP COM 681919106 57,561 -7,992 -12.19 2,849 -20.46 0.0085
2020-08-14 2020-06-30 13F OMNICOM GROUP COM 681919106 65,553 -32,261 -32.98 3,582 -33.30 0.0120
2020-05-18 2020-03-31 13F OMNICOM GROUP COM 681919106 97,814 97,814 5,370 0.0220
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.